Mounting-block for embossing-dies.



H. E. VAN D'REN.

'MOUNTING BLOCK FOR EMBOSSING DIES.

APPLICATION FILED OCT. I3. 15H3.

1,215,435. Patented Feb. 13, 1917.

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Specification of Letters Patent.

Panaireb. 13, l1917.

Application filed October 13, 1913. Serial No. 794,759.

To all whom t may concern.' i

Be it known that I, Horario E. VAN DoRnN, a citizen of the United States, residing at South Bend, in the county of St. Joseph and State of Indiana', have invented certain new and useful Improvements in Mounting-Blocks for Embossing-Dies, of which the following is a specification.

The invention relates to an improvement in mounting blocks for embossing dies, the construction providing a block adapted for effective and economical heating,.and constructed with a view for its use on any ordinary platen press. A

The invention is directed to amounting block in which the embossing die can be fiXedly and firmly secured without partic-4 Fig. 2 is an enlarged section on the line A-A ofFig. 1. 4

In the accompanying drawings, wherein is illustrated the preferred details of construction, the improved mounting block comprises a rectangular' section of appropriate "material, preferably in the form of a solid casting, the upper surface of which is cut away within the marginal edge to form a die bed 3, this construction presenting an upstanding edge flange 2 surrounding the die bed, the inner wall t of which fiange is at right angles to the surface of the die bed.

Clamping screws 6 are passed through threaded apertures 5 inthe flange 2, the

screws l6 operating at right angles to the edge wall 5 of the block. Similar clamping screws 7 arepassed through diagonally arranged threaded apertures 7 in the flange 2, the screws 7 being preferably arranged at the respective corners of the block and forming, together with the screws 6, of which there may be any number, the clamping means for the embossing die 1. The screws 6 and 7, which are in effect duplicates have outer squared terminals 8 and inner pointed terminals 9,

the latter particularly being extremely sharp and case-hardened. The squared terminals 8 serve as an operating head for adjusting the screws and lock nuts 6 coperate with the screws and the outer edge surface of the block to secure the screws in adjusted positions.

The pointed terminals of the screws are designed to engage theedges 11 of the embossing die 1 slightly below the longitudinal central line of said edges, and the -screws 6 and 7 are passed through the flanges 2 in a slightly downward and inward inclination, the die bed 3 being formed with channels 19 in which the relatively inner ends of the screws play in operation. By this arrangement the cooperation of the screw vwith the embossing die draws the die firmly on to the die bed, to prevent the possibility of the slightest movement of the die in use.

Secured tothe under surface of the mounting block proper are heating plates 15 and 17 separated by a mica strip 16, the plates 15 and 17 being preferably perforated and being of any suitable material for developing heat under the passage of the electric current. The usual extension cord 20 including conductors 19 is in electrical connection with the respective plates 15 and 17, the outer terminal of the cord having the usual plug 21 for connection with any convenient socket. The heating element just described ,is arranged beneath the bed 3 of the block, a metallic edge strip 12 surround# ing the heating` element between the edges of the same and the edges of the block. A strip of asbestos 13 or other nonconducting material underlies the heating element and strips 12, and a bottom plate 14, corresponding in size to the surface area of the block is secured beneath the asbestos strip, parts being removably secured to the block proper by screws 22, permitting the convenient renewal or adjustment of parts.

From the above described construction it will be obvious that I have provided a mounting block for embossing dies having important and distinct advantages for this type of device, particularly in that the block as a whole may be used on any platen press, and locked in the chase the same as the ordinary type form; also in that provision is made for the proper and effective heating of the die and the entire surface of the die bed without undue heating of additional parts of the press. A further and important,

advantage is that the improved block will receive and coperate with the die as it comes from the die sinker, avoiding the necessity of the usual treating ofthe edge of the die and its mounting.

A particularly important feature of the construction are the clamping screws, their relative dispositions, their case-hardened engaging points, and their inclined position, as by the relative dispositions of such screws I am able to secure in the block an embossing die of any edge outline, as will be apparent from Fig. l; by the engaging points of the screws I amV enabled to insure a positive holding action of the die which will prevent the'possibility of its slipping; and by the inclined positions of the screws I can so force the die on to the die bed as to give it the solidity of an integral part of the block.

It is of course apparent that when mounted in the ordinary platen press and locked in the form, the block permits any desired adjustment of the die therein or the substitution of a particular die with another, which aside from eliminating the necessity lof the usual embossing machine will by the saving of time and labor materially reduce the cost of the usual embossing operation.

HavingV described the invention what is claimed is: i l. A flat mounting block for embossing and like dies, means carried by the block for securing a die thereon, heating means carried Vby the block and arranged below the same and a plate secured to the block and underlying the heating means, the vertical aggregate dimension ofthe block, the heating means and plate being such as to support a die type high and the block as an entirety being adapted for use on an ordinary platen printing press.

2. A fiat mounting block for embossing 3. A flat mounting block for embossing and like dies including a block formed with a die receiving recess, means carried by the block to secure aV die within the recess, a heating element arranged beneath the block and underlying the die receiving recess, edge Vstrips secured to the block beyond the heating element whereby to confine the heating in efiect to the recess portion of the block, and heat insulating means underlying and secured to the block, said heat insulating means, heating element and block being of a ,dimension to support a cooperating die typehigh to permit the use of the block in an ordinary platen printing press.

4. As an adjunct for platen printing presses to adapt said presses for embossing purposes, consisting in a unitary structure including a mounting block, means for securing the embossing die in fixed relation to said block, and a heating means carried by the block to direct the heat to the die, such unitary structure being of a dimension to support a coperating die type high.

In testimony whereof I aflix my signature in presence of two witnesses.

HORATIO VE. VAN DOREN.

Vitnesses:

LELA Cook, GEORGE OLTscH.

Copies of Vthis patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

